Removal and replacement procedures 46
4.
Remove the sensor from the water piping.
Replacing the chilled water supply and return header pressure sensor
1.
Position the sensor as it was before removal.
2.
Connect the sensor to the sensing tube.
3.
Using a wrench, rotate the sensor retaining nut clockwise to tighten it.
4.
Reconnect the sensor wiring.
Chilled water flow sensor
Removing the chilled water flow sensor
1.
Label the wired connections or take a picture to remember which wires to reconnect to the chilled water
flow sensor.